Buffer overflow in Cisco Web Security Appliance
CVE-2017-3870
A vulnerability in the URL filtering feature of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to bypass a configured URL filter rule. Affected Products: This vulnerability affects all releases prior to the first fixed release of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA), both virtual and hardware appliances, that are configured with URL filters for email scanning. More Information: CSCvc69700. Known Affected Releases: 8.5.3-069 9.1.1-074 9.1.2-010.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N.
EPSS exploit prediction
EPSS: 0.015 (73.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 74th percentile — 73.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.015 · change: 0.000
Affected products
- Cisco Web Security Appliance — versions 8.5.3-069, 9.1.1-074, 9.1.2-010
- Cisco Web Security Appliance — versions Cisco Web Security Appliance
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170315… (Vendor Advisory)
- www.securityfocus.com/bid/96907 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1038043 (vdb-entry)
Frequently asked questions
- What is CVE-2017-3870?
- CVE-2017-3870 is a medium-severity vulnerability in Cisco Web Security Appliance, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.8/10. Published 2017-03-17.
- How severe is CVE-2017-3870?
- Medium severity. CVSS v3 base score is 5.8 out of 10.